Applications: Mainly used in heating, plumbing, ventilation and air conditioning industries. Facilitates quick pressure and temperature readings at recommended test points within process. Warranty: 1 Year. Material/Body: Lead Free Brass. Diaphragm/Core: NBR (Buna N). Temperature Rating: -40°F to 302°F (-40°C to 150°C). Maximum Pressure Rating: 1,000 psi (6895 kPa). Connection: 1/4” NPT Male Connection